41649637 has 2 divisors, whose sum is σ = 41649638. Its totient is φ = 41649636.

The previous prime is 41649631. The next prime is 41649659. The reversal of 41649637 is 73694614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31371201 + 10278436 = 5601^2 + 3206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41649637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41649637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41649631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20824818 + 20824819.

It is an arithmetic number, because the mean of its divisors is an integer number (20824819).

Almost surely, 2^41649637 is an apocalyptic number.

It is an amenable number.

41649637 is a deficient number, since it is larger than the sum of its proper divisors (1).

41649637 is an equidigital number, since it uses as much as digits as its factorization.

41649637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 41649637 is about 6453.6529965594. The cubic root of 41649637 is about 346.6333998937.

The spelling of 41649637 in words is "forty-one million, six hundred forty-nine thousand, six hundred thirty-seven".